说明
**Sanitary Stainless Steel Manhole Covers | Hygienic Access Ports for Tanks & Vessels**
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### **Product Overview**
Sanitary manhole covers (hygienic access ports) are essential for maintaining cleanability and accessibility in food, pharmaceutical, and biotech tank systems. Crafted from **316L/304 stainless steel**, these covers comply with EHEDG/3-A standards, offering seamless integration with CIP/SIP processes. Available in multiple configurations to suit diverse industrial needs.
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### **Types & Configurations**
1. **By Shape**
– **Round**: Standard design (DN400–DN600) for uniform pressure distribution.
– **Square/Elliptical**: Space-saving solutions for tight installations or non-cylindrical tanks.
2. **By Function**
– **Pressure-rated**: Reinforced flanges (up to 6 bar) for pressurized vessels.
– **Standard**: Non-pressurized tanks, fermentation units.
– **Sight Glass Manhole**: Integrated borosilicate glass window for visual inspection.
– **Double-Layer (Insulated)**: Thermal insulation for temperature-sensitive processes.
– **Vented**: Built-in exhaust valve (EPDM/PTFE) to release pressure or vapors.
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### **Design & Customization**
– **Opening Direction**: **Inward-opening** (external hinge) or **outward-opening** (internal hinge) to suit tank layout.
– **Surface Finish**:
– **Electropolished** (Ra ≤0.8µm): For high-purity applications (e.g., vaccine production).
– **Bead-Blasted**: Non-reflective, anti-slip texture for industrial environments.
– **Sealing**: FDA-grade EPDM/Silicone gaskets, bolted or clamp-secured.
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### **Technical Specifications**
| **Parameter** | **Specification** |
|———————-|——————————————–|
| **Size Range** | DN150–DN800 (6″–32″) |
| **Pressure Rating** | Standard: 0–3 bar / Pressure-rated: 6 bar |
| **Material** | 316L/304 SS, optional Hastelloy coatings |
| **Temperature** | -20°C to +150°C (EPDM) / +200°C (Silicone) |
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### **Tank System Integration**
Sanitary manholes pair with:
1. **Tank Accessories**
– **Hinges**: Heavy-duty SS hinges with self-lubricating pins.
– **Clamping Mechanisms**: Swing bolts, tri-clamp locks, or quick-release levers.
– **Gaskets**: Full-face or profile seals for leak-proof closure.
2. **CIP Components**
– **Spray Balls**: Rotating/fixed nozzles for internal tank cleaning.
– **Agitators**: Maintain homogeneity during cleaning cycles.
– **Sensors**: Pressure transmitters, temperature probes.
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### **Applications**
– **Dairy**: Milk storage tanks, pasteurizers.
– **Biopharma**: Bioreactors, buffer preparation vessels.
– **Brewing**: Fermentation tanks, bright beer tanks.
– **Chemical**: Mixing vessels with corrosive media.
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### **Why Choose Our Manhole Covers?**
– **Modular Design**: Retrofit existing tanks with custom flanges or sight glasses.
– **Hygienic Compliance**: Crevice-free surfaces, CIP-ready seals.
– **Explosion-Proof Options**: ATEX-certified designs for hazardous areas.
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### **FAQ**
**Q: Can manholes be customized for non-standard tank openings?**
A: Yes – provide CAD drawings or tank specs for bespoke sizing/shaping.
**Q: How to prevent gasket degradation during steam sterilization?**
A: Opt for high-temp silicone or PTFE-encapsulated seals.
**Q: Are sight glass manholes compatible with abrasive cleaners?**
A: Use tempered glass with protective SS guards.
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Sanitary Manhole Cover, Stainless Steel Tank Access Port, CIP-ready Manhole, Sight Glass Manhole, Pressure-rated Manhole, EHEDG-compliant Cover
关于我们
宏泰专业生产高品质的卫生级阀门和不锈钢管件，主要服务于制药、食品加工和化工等行业。我们的产品采用优质 304、316 和 316L 不锈钢制成，具有出色的耐腐蚀性，并采用激光切割和精密焊接等先进制造技术精心制作而成。HongTai 的阀门专为卫生和流体完整性而设计，是要求最佳清洁度和持久性能的行业的理想选择。
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先进技术： 我们拥有最先进的设备，包括定期更新的数控车床和精密工具，确保每件产品都具有较高的表面精度和较小的公差。
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